+# FIXME: It may be removed when we use 2.8.12.
+if(CMAKE_VERSION VERSION_LESS 2.8.12)
+ # Invalidate a couple of keywords.
+ set(cmake_2_8_12_INTERFACE)
+ set(cmake_2_8_12_PRIVATE)
+else()
+ # Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries().
+ set(cmake_2_8_12_INTERFACE INTERFACE)
+ set(cmake_2_8_12_PRIVATE PRIVATE)
+ if(POLICY CMP0022)
+ cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
+ endif()
+endif()
+
+if(CMAKE_VERSION VERSION_LESS 3.1.20141117)
+ set(cmake_3_2_USES_TERMINAL)
+else()
+ set(cmake_3_2_USES_TERMINAL USES_TERMINAL)
+endif()
+
+project(LLVM)
+
+# The following only works with the Ninja generator in CMake >= 3.0.
+set(LLVM_PARALLEL_COMPILE_JOBS "" CACHE STRING
+ "Define the maximum number of concurrent compilation jobs.")
+if(LLVM_PARALLEL_COMPILE_JOBS)
+ set_property(GLOBAL APPEND PROPERTY JOB_POOLS compile_job_pool=${LLVM_PARALLEL_COMPILE_JOBS})
+ set(CMAKE_JOB_POOL_COMPILE compile_job_pool)
+endif()
+
+set(LLVM_PARALLEL_LINK_JOBS "" CACHE STRING
+ "Define the maximum number of concurrent link jobs.")
+if(LLVM_PARALLEL_LINK_JOBS)
+ set_property(GLOBAL APPEND PROPERTY JOB_POOLS link_job_pool=${LLVM_PARALLEL_LINK_JOBS})
+ set(CMAKE_JOB_POOL_LINK link_job_pool)
+endif()
+